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Chapter 24. Global Mirror interfaces 319
Figure 24-11 ICKDSF - define Global Mirror session
Example 24-27 shows an ICKDSF job that defines a Global Mirror session involving the LSS
that volume RS7000 belongs to. Note that with this Global Mirror command, you do not need
to define an LSS number, nor a CCA, nor the SSID.
Example 24-27 ICKDSF job to define a Global Mirror session to an LSS
//* -------------------------------------------------------------- ***
//STEP01 EXEC PGM=ICKDSF
//SYSPRINT DD SYSOUT=*
//DD01 DD UNIT=3390,VOL=SER=RS7000,DISP=SHR
//SYSIN DD *
PPRC DDNAME(DD01) DEFINESESSION -
OPEN -
SESSIONNO(001)
/*
Example 24-27 points again to an online volume by the DDNAME parameter. A session is
created involving the corresponding LSS; it is session number 001 in this example.
24.5.6 Add volumes to a session
In this step we add Global Copy primary volumes to the Global Mirror session; see
Figure 24-12 on page 320.
Remote site
(secondary)
Master
Subordinate
LSS
LSS
LSS
LSS
Long distance
Global Copy
volume pairs
Local site
(primary)
Flashcopy target
Primary volumes Secondary volumes = Flashcopy source
Global Mirror
session paths
Global Copy
paths
Global Copy
paths
Session number
LSS
LSS
LSS
LSS